Author's: Santanu Chakraborty, Department of Computer Application Sikkim manipal university, Gangtok Sikkim-737102, India.Ramesh Kumar Sharma, Department of Computer Science Gurunanak College, Dhanbad Jharkhand-826001, India .Pushpa Tewari, Department of Computer Science Gurunanak College, Dhanbad Jharkhand-826001, India Email: ksantanu28@gmail.comSoft computing is the fusion of different constituent elements. The main aim of this fusion to solve various real life problems, which are not solve by traditional approaches that is hard computing techniques. Actually, in our daily life maximum problems having several uncertainties and vagueness informations. So hard computing is fail to solve these problems, because it give exact solution. To overcome this situation soft computing plays a vital role, because it has capability to deal with uncertainties and vagueness and produce approximate result that is nearby exact. This paper focuses on applications of soft computing techniques over hard computing techniques.